"frequency"=>"50","location"=>"outdoor","phases"=>"1","transformer"=>"auto","voltage:primary"=>"-25000","voltage:secondary"=>"25000","windings"=>"2"
"frequency"=>"50","location"=>"outdoor","phases"=>"1","transformer"=>"auto","voltage:primary"=>"-25000","voltage:secondary"=>"25000","windings"=>"2"
"phases"=>"2","rating"=>"85 MVA","voltage"=>"150000;25000","frequency"=>"50","transformer"=>"traction"
"phases"=>"2","rating"=>"85 MVA","voltage"=>"150000;25000","frequency"=>"50","transformer"=>"traction"